Wing of flying machines



April 20,1926; v 581,565.

c. DORNIER WING OF FLYING MACHINES Filed Mails, 1924 EFF? i Patented-Apr. 20,1926. I

UNITED STATES PATENT OFFICE.

OLAUDIUS DOBNIER, OF FRIEDRICH SH AFEN-ON-THE-BODENSEE, GERMANY.

. WING OI- .ELYING MACHINES.

Application filed May 15,

shaferi-on-the-Bodensee, Germany, have in-1 vented certain new anduseful Improvements in Wings of Flying Machines, of which the following is a specification. 1 I

My invention refers to the wings and supporting surfapes of flying machines. It is an object of my invention to provide wings or supporting surfaces which, while being as strong as the strongest planes hitherto constructed, can be manufactured and handled and mounted more easily Wings or supporting surfaces forming anundivided whole involve the drawbacks that certain points and more especially the joints inside the supporting surface are not easily accessible. Moreover, such supporting surfaces, owing to their larger size, cannot be handled easily and are liable to be damaged during transport. and when being mounted. It has been tried to avoid these drawbacks by constructing the wings in several parts which are then assembled to ether. However, such wings, although 0 ering certain supporting plane in one part, while they ofier great advantages by being easily takemto pieces, the single parts being easily exchanged and all parts of the material of the surface being easily accessible.

The wing or supporting surface, according to the present invention, comprisesa main portion of H-i-l l i I l or l shape, the spars representing the main ribs forming the outer surfaces of said main portion. The gaps between the middle web and the lateral edges of the ribs are filled up by separate self-contained sectional members w' 'ch can easily be disengaged and exchanged, each sectional'member forming a self-contained unit which can be manufactured independently of the other members and of the main portion. This latter, as well .as the several sectional members, are provided each with its own covering. The sectional members are fixed in place on the 1924. Serial 1T0. 713,503.

main portion for instance by means of screw bolts inserted in eyes arranged on adjacent edges of the main body and the sectional members, respectively. It is, however, also. possible to arrange the sectional mem bers hinged at the outer ends of the wings in order to be able to opera-te'them as ailerons. In special cases, for instance where the transport offers particular difficulties, that portion of the wing which extends in front of. the transverse beams can forma self-contained, easily disengageable unit.

In the drawings alfixed to this specification and forming part thereof, wings or supporting surfaces embodying .my invention are illustrated diagrammatically by way of example. In the drawings- Fig. 1 is a partial plan view,

Fig. 2 a partial front view with the sectional members removed and Fig. 3 a cross section of the first modification, while I Fig. 4 is a partial plan view of a second modification.

Fig. 5 is a front view and Fig. 6 a side view showing the way in which the sectional members are fixed in place.

Referring to the drawings, a is the middle web of the main body of the wing and b, b are ribs extending on both sides of the mid dle web and at right angles to it, while a, c are self-contained sectional members, filling thga gaps between the middle web a and the ri s b.

in the modification shown in Fig. 4, the ribs 6 with sectional members 0 inserted between them extend only on one side of the middle web a and the entire front portion or head 03' of thewing forms a self-contained been removed, will form a comparatively narrow rectangular body which can easily be transported.

I. wish it. to be understood that I do not 1. A wing or supporting surface for fly-' ing machines comprising a middle web, .ribs

extending from said middle'web substantially at right angles thereto, a self-contamed sectional member filling the gap between said middle web and said ribs and means-for fixing said member in place between" said ribs in an easily disengageable manner. a

2. A wing or supporting surface for jflying machines, comprising a middle web, ribs extending on either side and at right angles to said middle web, self-contained sectional members mounted between said middle web and said ribs and means for disengageably fixing said members to said ribs.

3. A wing or supporting surface for flying machines, comprising a middle web, ribs extending from said middle .web on one side thereof at right angles tl1ereto a self-contained sectional member filling the gap between said middle web and said ribs, a head Hortion forming a self-contained unit being isengageably fixed to said middle web on the other side thereof and means for disengageably fixing said members to said ribs.

- A wing or suPporting rface for fljini-l machines comprislng a middle web, ribs extendin from said middle web substantially at righ angles thereto, a self-contained seetional member filling the gap between said middleweb and said ribs and means for fixing said member in place between said ribs m an easily, disengageable'manner, the

covering of said insert being separate from the covering of said middle web and ribs.

5. A wing or supporting surface for flying machines, comprising a middle web, ribs extending from said middle web substantially at right angles and being removably fixed thereto, a self-contained sectional member filling the gap between said middle web and v v said ribs and means for fixing said member in place betwen said ribs in an easily disengageable manner.

. 6. A wing or supporting surface for flying machines comprising a middle web, ribs extending from said middle web substantially at right angles thereto, a self-contained sectional member filling the gap between said middle web and said ribs and means for attaching said member in place between said L ribs insuch manner that it can be rocked for use as an aileron and can'also be disen aged altogether from said middle web.

11 testimony whereof I aflix my signature.

I CLAUDIUS DORNIER. 

